A CERTAIN SPECIES OF CRICKETS HAS A LINEAR RELATIONSHIP BETWEEN THE AIR TEMPERATURE "T" AND THE NUMBER OF CHIRPS PER MINUTE BY THE CRICKET. tHIS LINEAR REALTIONSHIP IS GIVEN BY ch(T)=4T-160. WHEN THE TEMPERATURE "T" IS 55 DEGREES, FIND THE NUMBER OF CRICKET CHIRPS PER MINUTE. pLEASE COULD SOME ONE WALK ME THROUGH STEP BY STEP HOW TO SOLVE THIS?

Question

A CERTAIN SPECIES OF CRICKETS HAS A LINEAR RELATIONSHIP BETWEEN THE AIR TEMPERATURE "T" AND THE NUMBER OF CHIRPS PER MINUTE BY THE CRICKET. tHIS LINEAR REALTIONSHIP IS GIVEN BY  ch(T)=4T-160. WHEN THE TEMPERATURE "T" IS 55 DEGREES, FIND THE NUMBER OF CRICKET CHIRPS PER MINUTE. pLEASE COULD SOME ONE WALK ME THROUGH STEP BY STEP HOW TO SOLVE THIS?

anonymous · Answer

ch(T) gives cricket chirps in terms of T
if T = 55 & ch(T) = 4T -160, we just plug in 55 for T (substitution)
Therefore: ch(T) = 4*55 - 160 = 170 - 160 = 10 chirps/minute

anonymous · Answer

THAT DOESNT LOOK RIGHT TO ME, IF YOU 4*55-160, MY ANSWER COMES UP WITH 220-160 WHICH THEN IS 60 FOR FINAL ANSWER  RIGHT?

anonymous · Answer

You are right.  Multiplication error :D

anonymous · Answer

oh ok thanks i dk you answered already